Configure NetFlow Exports
To use a NetFlow collector for analyzing the network traffic on firewall interfaces, perform the following steps to configure NetFlow record exports.
- Create a NetFlow server profile.The profile defines which NetFlow collectors will receive the exported records and specifies export parameters.
- SelectandDeviceServer ProfilesNetFlowAdda profile.
- Enter aNameto identify the profile.
- Specify the rate at which the firewall refreshes NetFlow Templates inMinutes(default is 30) andPackets(exported records—default is 20), according to the requirements of your NetFlow collector. The firewall refreshes the templates after either threshold is passed.
- Specify theActive Timeout, which is the frequency in minutes at which the firewall exports records (default is 5).
- SelectPAN-OS Field Typesif you want the firewall to export App-ID and User-ID fields.
- Addeach NetFlow collector (up to two per profile) that will receive records. For each collector, specify the following:
- Nameto identify the collector.
- NetFlow Serverhostname or IP address.
- AccessPort(default 2055).
- ClickOKto save the profile.
- Assign the NetFlow server profile to the firewall interfaces that convey the traffic you want to analyze.In this example, you assign the profile to an existing Ethernet interface.
- Selectand click an interface name to edit it.NetworkInterfacesEthernetYou can export NetFlow records for Layer 3, Layer 2, virtual wire, tap, VLAN, loopback, and tunnel interfaces. For aggregate Ethernet interfaces, you can export records for the individual sub-interfaces that data flows through within the group.
- Select the NetFlow server profile (NetFlow Profile) you configured and clickOK.
- (Required for PA-7000 Series and PA-5200 Series firewalls)Configure a service route for the interface that the firewall will use to send NetFlow records.You cannot use the management (MGT) interface to send NetFlow records from the PA-7000 Series and PA-5200 Series firewalls. For other firewall models, a service route is optional. For all firewalls, the interface that sends NetFlow records does not have to be the same as the interface for which the firewall collects the records.
- (Firewall with multiple virtual systems)Select one of the following:
- Global—Select this option if the service route applies to all virtual systems on the firewall.
- Virtual Systems—Select this option if the service route applies to a specific virtual system. Set theLocationto the virtual system.
- SelectService Route Configurationand Customize.
- Select the protocol (IPv4orIPv6) that the interface uses. You can configure the service route for both protocols if necessary.
- ClickNetflowin the Service column.
- Select theSource Interface.Any,Use default, andMGTare not valid interface options for sending NetFlow records from PA-7000 Series or PA-5200 Series firewalls.
- Select aSource Address(IP address).
- ClickOKtwice to save your changes.
- Commityour changes.
- Monitor the firewall traffic in a NetFlow collector.Refer to your NetFlow collector documentation.When monitoring statistics, you must match the interface indexes in the NetFlow collector with interface names in the firewall web interface. For details, see Firewall Interface Identifiers in SNMP Managers and NetFlow Collectors.To troubleshoot NetFlow delivery issues, use the operational CLI commanddebug log-receiver netflow statistics.
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